NOTICE:
You can find some "Kentaro Yokoyama"s on twitter but they are not my account. I tweet on twitter anonymously.
You can also find "Kentaro Yokoyama"s on facebook and other SNSs. Please check profiles and pictures carefully.
注意：
「横山健太郎」や「Kentaro Yokoyama」でネット検索すると，いくつかTwitterアカウントがヒットしますが，私とは同姓同名の別人です．私はTwitterへの書き込みは匿名で行っております．ご注意下さい．
また，Facebook上にや他のSNSにも複数の同姓同名さんがいらっしゃいます．顔写真やプロフィール等をよくご確認願います．
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